101. quite, rather　　

quite 完全地，相当于completely，例：quite impossible
rather 修饰比较级

102. happy, glad　　

happy 高兴，幸福，定表均可，例：a happy girl
glad 高兴，只能做表语

103. instead, instead of　　

instead 是副词，放在句首或句末，例：He didn't see a film. Instead he watched TV.
instead of 是介词短语，放在句中，例：He watched TV instead of seeing a film.

104. too much, much too　　

too much 后接不可数名词；
much too 后接形容词，例：much too heavy

105. be about to, be going to, be to do　　

be about to 表最近的将来，后面不接时间状语；
be going to 侧重打算，想法；
be to do 侧重意志，计划，安排 例：I'm to meet him.（含双方事先约好的意思）